diff --git a/alerting/src/main/kotlin/org/opensearch/alerting/DocumentLevelMonitorRunner.kt b/alerting/src/main/kotlin/org/opensearch/alerting/DocumentLevelMonitorRunner.kt
index a0d661465..5fec8df7e 100644
--- a/alerting/src/main/kotlin/org/opensearch/alerting/DocumentLevelMonitorRunner.kt
+++ b/alerting/src/main/kotlin/org/opensearch/alerting/DocumentLevelMonitorRunner.kt
@@ -742,7 +742,9 @@ object DocumentLevelMonitorRunner : MonitorRunner() {
         }
 
         if (response.status() !== RestStatus.OK) {
-            throw IOException("Failed to search percolate index: $queryIndex. Response status is ${response.status()}")
+            throw IOException(
+                "Monitor ${monitor.id}: Failed to search percolate index: $queryIndex. Response status is ${response.status()}"
+            )
         }
         return response.hits
     }